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115457443 = 1011143143
BaseRepresentation
bin1101110000110…
…11110110100011
322001020211211121
412320123312203
5214024114233
615242353111
72601241423
oct670336643
9261224747
10115457443
115a199982
12327bb797
131abc641a
1411496483
15a20992d
hex6e1bda3

115457443 has 4 divisors (see below), whose sum is σ = 116600688. Its totient is φ = 114314200.

The previous prime is 115457437. The next prime is 115457453. The reversal of 115457443 is 344754511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 344754511 = 1013413411.

It is a cyclic number.

It is not a de Polignac number, because 115457443 - 213 = 115449251 is a prime.

It is a super-2 number, since 2×1154574432 = 26660842288196498, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 115457399 and 115457408.

It is not an unprimeable number, because it can be changed into a prime (115457413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 571471 + ... + 571672.

It is an arithmetic number, because the mean of its divisors is an integer number (29150172).

Almost surely, 2115457443 is an apocalyptic number.

115457443 is a deficient number, since it is larger than the sum of its proper divisors (1143245).

115457443 is a wasteful number, since it uses less digits than its factorization.

115457443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1143244.

The product of its digits is 33600, while the sum is 34.

The square root of 115457443 is about 10745.1125168609. The cubic root of 115457443 is about 486.9383483888.

The spelling of 115457443 in words is "one hundred fifteen million, four hundred fifty-seven thousand, four hundred forty-three".

Divisors: 1 101 1143143 115457443